Home / 66,128.04-91,258.31-35,914.64

Finding the Fourth Proportional to 66,128.04, 91,258.31 and 35,914.64

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Solution

The fourth proportional to 66,128.04, 91,258.31 and 35,914.64 is: 49,563.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,128.04 : 91,258.31 = 35,914.64 : x
  2. Step 2: Convert to fraction form
    66,128.04/91,258.31 = 35,914.64/x
  3. Step 3: Cross multiply
    66,128.04x = 91,258.31 × 35,914.64
  4. Step 4: Simplify right side
    66,128.04x = 3,277,508,984.15
  5. Step 5: Solve for x
    x = 3,277,508,984.15/66,128.04
  6. Step 6: Final answer
    x = 49,563.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.